Slimes-filtering apparatus.



I PATENTED SEPT. 10, 1907. D. J. KELLY & J. M. UALLOW.

' SLIMEIS'FILTEIRING APPARATUS.

APPLIOATIOH FILM; D20. a. 1906.

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DAVID J. KELLY AND JOHN M. OALLOW, OF SALT LAKE CITY, UTAH, ASSIGNORS TO THE KELLY FILTER PRESS 0., OF SALT LAKE CITY, UTAH, A CORPORATION OF UTAH.

SLIMES-FILTERING APPARATUS.

Application filed December To all whom it may concern: I I

Be it known that we, DAVID J. Knnm: and J OHN M GALLOW, citizens of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, 5 have invented new and useful Improvements in Slimes- Filtering Apparatus, of which the following is a specification.

Our invention relates to certain new and useful improvements in apparatus designed to separate solid l0 matter, of whatever nature, from liquids, the apparatus being particularly useful in the art of separating slimes from which precious metals have been dissolved Specification of Letters Patent.

and the liquid which holds the precious metals in solulion; the invention being also useful in the sugar Iriaking industry for removing the precipitate of calcium carbonate resulting from the purification, in carbonators, of sugar juice. It is also useful in what is known as the "Steffans process for filtering out the solid material, calcium saccharate. v

The present improvement has relation more partic ularly to the construction in the aforesaid type of apparatus of a locking-head connection between the pres sure tank and the filter-frame carriage by which a perfectly tightjoint is formed around the open end of the tank. to prevent any leakage at this point, and to securely lock the filtorframe carriage in its position in the tank. 1 V v Our invention consists of the parts and the construction, arrangement and combination of parts which we will hereinafter describe and claim.

In the accompanying drawings forming part of this specification and in which similar reference characters indicate like parts in the several views: Figure l, is a side elevation of the front end of a pressure-tank showing the head thereofunlocked and with its attached filter-frame carriage, partly withdrawn therefrom. Fig. 2, is a vertical sectional view of Fig. 1. Fig. 3, is an end view. I V I In a prior patent No. 815,021, dated March 13, 1906 filed August 10, 1906 by David J. Kelly, there are disclosed an apparatus forthe filtration of slimes 0r solids from fluid matter, which apparatus comprises among its essential parts, the tank A, the traveling filter carriage B, the filters 0, carried by the carriage and an exterior trackway upon which the carriage with its filterfraincs is run out of the tank when the filters are heavily or more or less. fully charged with separated solid matter and it is desired to remove the collected solid matter fromthe sides of'the filter frames. As these features are fully described in the aforesaid prior patent and application, and as the present improve} mcnt relates particularly to the locking-head connecand in a former application Serial Number 33 0,009,

tion between the tank and the front end of the filter Patented Sept. 10, 1907.

1906. Serial No. 346.416.

frame carriage, we deem it unnecessary in the present instance to give a detailed description or illustration of said features.

At the front or open end of the tank A is fixed an annular casting or ring 10 which is preferably angular in crosssection with reinforcing or bracing webs l1 and an buistanding portion 12 having an annular groove 13 which is exterior to andconcentric with the open end of the tank, said groove containing, preferably,

a gasket 14. The outstanding portion 12 of the casting or ring 10 is pierced at points to receive the threaded stems of the lugs 15 whose front portions are recessed at 16 and whose stems are engaged by s ecuring and jam nuts 17 and 17 whereby said lugs are firmly bolted to the ring. v

The filter frame carriage B is, preferably, of the construction set forth in detail in the aforesaid prior patent and application, and it contains and carriesthe filters C upon the outside of whose foraminous or filter sides the solid matter is separated from the liquid, the liquid passing through the filter sides to the interior of the filters and thence through pipes 18 to the outside of the apparatus for final delivery, in the manner described in the aforesaid patent and application or in any other well known and appropriate manner.

The filter-frame carriage has rigidly connected to it the head D which forms the closure for the open ehd of the tank A when the carriage is run'back into the tank and the parts are in their operative filtering position, as in Fig. 2. .This head D is preferably, a rigid casting having on its inner face an annular rib or flange 19 which is designed to enter the annular groove or channel in the outstanding part of the ring 10 on the front end of the tank, said head having on, its outer face suit able fulcrum lugs 20, as shown in Fig. 2 which lugs are contained between spaced lugs or ears 2]. projecting from the front face of the head and between which ears or lugs 2] the outer ends of suitable levers 22 operate and are slidably guided. I

The levers 22 are radially disposed and have their. inner ends pivotally connected between spaced lugs 23 made rigid with a collar 24 which is loosely mounted on the extended and reduced hub portion 25 of a hand wheel 26 internally threaded to engage a screw 27 bolted to the central portion of the head and extending I outwardly therefrom centrally of the series of radial F.0O levers.

The collar 24is retained in its proper position cm the hub of the hand wheel by a retaining ring 24 bolted to the rear end of said hub portion and a free movement is allowed the collar relative to the'hand wheel. v

The inner ends of the radial lovers are preferably rounded and fit in recesses or sockets' formed between the spaced ears or lugs 23 and the flange of the collar 24;

. lugs.

the outer -ends of the levers are curved on their rear edges to facilitate the sliding motion on the fulcrums. The corresponding curvature of the wall of the recess in the locking bolts is to accommodate this curvature and the opposite or front edge of said levers backs squarely against the flat front wall of the recess as shown In addition to the foregoing, we employ springs 28 which press against the outer edges of the levers substantially in line with the fulcrum lugs 20 to thereby maintain the fulcrum points of said levers against the The specitic form of spring shown is a bent plate one end of which is contained between and fixed to the outer ends of the spacedguidc lugs 21 while the other end is designed to bear against the back edge of the 'lever.

I withdrawn from the tank and it being desired to secure it in the tank and to tightly close the open end of said tank, the said carriage is run back into the tank by-appropriate means. the hand whccl being ill'Slrun out on thc screw 27 toretract the radial lcvcrs to allow their "outer ends to pass the lugs 15 when the head is retracted against the open end of the tank.

Then the hand wheel is turned to cause. it; to run back on the screw. the

collar 24 being caused to slide towards the head during this operation, and the ]('\'t'l'$ are caused to slide outwardly ouihe l'ulcrum points and slidably engage the locking lugs and thereby iorcc the head tightly against. the ring 10 oitho tank with the annular. llnnge i l) of said head scatc'd tightly against the gasketin thc groovc or channel of the ring.

Wc are aware that it is not broadly new to employ with an open-ended tank; ahead and radially disposcd levers engaging lugs on the tank, and a follower to operate said levers to cause thcm to fulcrum on the head and thereby force the hcad'agninst thc opcu uid oi a tank and such invention we do not. broadly claim: I

in the present invention we pivot the lcycrs to a collar which is slidably mountcd on the central screw, thc said collar'bcing without oxinl moycnu-nl, therefore as the-hand wheel is turned ihc lcvcrs slidc radially on the fulcrum points and slid-ably engage the locking lugs. We thcrci'orc take advantage oi' the [act that thc engagement or disengagement. ol' the lugs by the lovers is accomplished by a simple tori nrd or backward more- I ment of the slid-able collar, the said collar and radial levers pivoted thereto constituting substantially toggle mechanism.

Having thus described our invention what we claim as new and desire to secure by Letters Patent is,-

1. In apparatus of the character described, the combina- 7 tion of a tank-having afiopen end and an annular series of independently-removeble and adjustable lockingdugs, a removable head forming a closure for snid,tank, and means for securing the head to the tank. said means comprising :1 screw fixed lcentrally to the head. a rotatable follower engaging the screw. a collar loose on the follower, a'series of radially-disposed lcrcrs having innercnds pivotally connected to the collar. guide lugs iixcd to .nnd projecting from the hcml ncar the periphery thereot and between which the outer ends of the levers-.are

slidably mounted, said outer ends of the lovers adapted to interlock with the lugs on the tank to secure the bend to the tank, andsprings acting on the outer ends of the levers to normally hold the b tter against the head at the base of the spaced lugs. 4

2. in apparatus of the character described. the coiubinntlon with n'tauk having an open end and a iixed rina' surrounding said end, and provided with outwardly exit-uding locking-lugs, of a head adapted to term a closure for said open end of the tank. said bend having: a centrally located outwardly extending screw and boring pairs of spaced lugs disposed approximately around its outer edge. fulcrum-lugs between the bases of said spaced lugs. at hand wheel threaded on said screw having' an extended llllll-])(l|il(lli, n ilnnged collar loosely mounted on said bub portion and provided with lugs; rndinlly disposed lcrers lmri inner cnds pivoinlly connected to the luu's ,on the collar and having their outer portions .slidnbly gniiicd between the said spaced luus on the head. said levers adapt.- cd to fulcrum on the lugs at the bases of the spaced logs on said head, a ring lmvprgmi inrerengn ing dance and- ;zroovc connection adapted to form a tight joint. and

springs acting against the lovers to maintain the latter in contact" with the fulcrum-lugs. V

II. in apparatus 01 the character described, the combination of a tank. a bend adapted to form n closure therefor. a screw projecting centrally from said head. a follower on llt screw. said follower comprising a hand-wheel and u lltlli -:t(l collar loose thereon. levers piyotcd to said loose collar and cxtending radially beyond the poripherypf the bond, spaced lugs on the head between which the outer DAVID .1. Kenny. JOHN M. UALLUW.

Witnesses r\. -.l. .loupox Winsox, 11am. ll. il-mliuolu-i. 

